Owner's manual for DSR series powered speakers and powered subwoofer, describing the features and characteristics of DSR112, DSR115, DSR215, and DSR118W models.
This manual provides safety warnings, installation guidelines, and operating instructions for the Yamaha DSR series powered speakers (DSR112, DSR115, DSR215) and the DSR118W subwoofer. It covers power connections, control functions, and recommended mounting practices.
The document also includes setup examples for various sound‑reinforcement configurations, troubleshooting tips, and technical specifications such as the built‑in DSP features, HPF settings, and protection circuits.
| Power supply type | Class‑D amplifier with switching power supply and PFC |
|---|---|
| High‑pass filter cutoff | 120 Hz |
| Peak indicator threshold | 3 dB below clipping |
| Limiter activation level | Attenuation of 3 dB or higher |
It lights when the amplifier output exceeds its maximum voltage, when excessive power is drawn, or when attenuation reaches 3 dB or more.